<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>08_盒子的边框_border</title>
    <style>
        div {
            width: 300px;
            height: 300px;
            background-color: aqua;
            /* border-style: solid; */
            /* border-left-width: 20px;
            border-right-width: 30px;
            border-top-width: 40px;
            border-bottom-width: 50px;
            

            border-left-style: solid ;
            border-right-style: dotted;
            border-top-style: double;
            border-bottom-style: groove;

            border-left-color: rgb(170, 0, 255);
            border-right-color: aquamarine;
            border-top-color: rgb(197, 20, 20);
            border-bottom-color: chartreuse; */

            border: 10px  solid  red;
        }
    </style>
</head>
<body>
    <div>你好啊</div>
</body>
</html>